Upgrade your electrical projects with the Single Gang Electrical Outlet Junction Box Old Work Box 3-Pack, designed for easy installation in existing walls. Whether you're adding a new outlet or replacing an old one, these old work boxes are perfect for retrofit applications. Featuring a durable construction, they provide a secure fit for standard electrical outlets and switches. The unique design allows for quick, hassle-free installation without the need for additional tools. Ideal for residential or commercial use, these boxes ensure a safe and reliable connection every time. Get the job done efficiently with the Single Gang Electrical Outlet Junction Box 3-Pack-your trusted solution for any electrical project. Material: Thermoplastic.